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Branco Estremoz

Branco Estremoz

Origin: Portugal

Type: Marble

 

Macroscopic Description

Rock with granoblastic roughly equigranular texture, showing slight deformation

 

Petrographic Description

White marble slightly rose and grey veined, fine grained.

 

Physico-Mechanical Properties

 

  • Compression Breaking Load: 960 Kg/cm2
  • Compression Breaking Load after Freezing Test: 767 Kg/cm2
  • Bending Strength: 276 Kg/cm2
  • Volumetric Weight: 2711 Kg/m3
  • Water Absorption: 0,07%
  • Apparent Porosity: 0,18%
  • Thermal Linear Expansion Coefficient: 11,5 (10^6 per ºC)
  • Abrasion Test: 3,4 mm
  • Impact Test: 57,5 cm

 

Chemical Properties

 

  • Al2O3: 0,37%
  • CaO: 54,82%
  • Fe2O3: 0,08%
  • K2O: 0,25%
  • MgO: 0,36%
  • Na2O: 0,07%
  • P. R.: 43,07%
  • SiO2: 1,21%

 

Microscopical Properties

 

  • Calcite: 99%
  • Quartz: 1%